[mapserver-users] data parameter in tileindex

[Edward Mac Gillavry]

Zmister,

Check out the GH repo of the Amsterdam municipality. The MAP-file for 2020 is at https://github.com/Amsterdam/mapserver/blob/master/lufo2020.map where you can see the DATA connection to the Shape file that holds the tile index. The Shape files for the various years are in the folder https://github.com/Amsterdam/mapserver/tree/master/luchtfoto. These were created using gdaltindex as you can see in the bash script at https://github.com/Amsterdam/mapserver/blob/master/lufopyramids.sh. That's where you pass the location of the GeoTIFFs to populate the column in the Shape files so MapServer can open the required GeoTIFFs to generate an image  Hopefully these practical examples guide you.

Best,

Edward




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________________________________
From: mapserver-users <mapserver-users-bounces at lists.osgeo.org> on behalf of Zmitser Kozhukh via mapserver-users <mapserver-users at lists.osgeo.org>
Sent: Wednesday, March 24, 2021 8:02:45 AM
To: Carlos Ruiz <boolean10001 at yahoo.com>
Cc: mapserver-users at lists.osgeo.org <mapserver-users at lists.osgeo.org>
Subject: Re: [mapserver-users] data parameter in tileindex

Dear Carlos, it is not about mapfile, it is in location cell of tileindex. It is one cell in table (database table, dbf file etc.), and I need to put there both connection and data details. The question is how to make it so that mapserver parses it correctly.
Sincerely, Zmitser

Среда, 24 марта 2021, 6:53 +03:00 от Carlos Ruiz <boolean10001 at yahoo.com>:

Zmitser,

You have to have the following on a MAP file:

LAYER

...

CONNECTION "host=<HOST> ... password=<PASSWORD>"
CONNECTIONTYPE <CONNECTION_TYPE>
DATA "<GEOM_COLUMN> FROM <TABLE NAME> USING UNIQUE <ID> USING SRID=<SRID>"

...

END

On DATA you must specify the name of the geometry column and the table, if you're using a database. If you are using a shape file you just have to include the DATA keyword with the path and the name of the SHP file.


On Tuesday, March 23, 2021, 2:34:48 AM CST, Zmitser Kozhukh via mapserver-users <mapserver-users at lists.osgeo.org</compose?To=mapserver%2dusers at lists.osgeo.org>> wrote:


Dear mapserver users, I need to specify data parameter at the location item of tileindex.
So far, I have tried many possibilities but none works:
‘host=127.0.0.1 dbname=database user=admin password=admin DATA "geom from table using unique id using srid=4326"’
or
host=127.0.0.1 dbname=database user=admin password=admin data="geom from table using unique id using srid=4326"
etc.
Still I get an error :
msDrawMap(): Image handling error. Failed to draw layer named 'layer'. msPostGISLayerOpen(): Query error. Nothing specified in DATA statement.
Could someone please tell in which format data statement should be?
In documentation it is written vaguely:
Normally the location should contain the path to the tile file relative to the shapepath, not relative to the tileindex itself. If the DATA parameter contains a value then it is added to the end of the location.

--
Zmitser Kozhukh
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--
Zmitser Kozhukh

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